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Chatmail

Minimal, instant-onboarding mail server for Delta Chat

Mail Servers ★ 476 stars Medium setup MPL-2.0

Chatmail is a lightweight, opinionated mail server tuned to provide instant onboarding for Delta Chat users. It strips traditional mail server complexity to act as a fast messaging relay.

Official siteSource code

Key features

  • Instant account onboarding
  • Optimized for Delta Chat
  • Encrypted-by-default messaging
  • Lightweight relay design

Pros & cons

Strengths

  • Released under the MPL-2.0 license
  • First-class Docker support for quick deployment
  • Written in Python
  • Lightweight — runs in 512 MB RAM

Trade-offs

  • Purpose-built for Delta Chat
  • Not a general mail server

Chatmail replaces

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